题解 | 编写函数实现两数交换（指针方式）
#include <iostream>
using namespace std;
// write your code here......
void switch_num(int * m, int * n){
int temp;
temp = *m;
*m = *n;
*n = temp;
}
int main() {
int m, n;
cin >> m;
cin >> n;
// write your code here......
switch_num(&m, &n);
cout << m << " " << n << endl;
return 0;
}
